Improvement in brakes for horse-powers



UNITED STATES PATENT OEEICE.

IMPROVEMENT IN BRAKES FOR HORSE-POWERS.

Specification forming part of Letters Patent No. 50,277, dated October3, 1865.

To all whom t't may concern:

Be it known that I, WM. F. RUNDELL, of Genoa, in the county of Cayugaand State of New York, have invented a new and Im proved Self-ActingBrake for Horse-Powers; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable thoseskilled in the art to make and use the same, reference being` had to theaccompanying drawings, forming part of this specification, in which-Figure l is a side view of my invention Fig. 2, a front View ofthe same;Fig. 3, a plan or tow view of a portion of the same.

Similar letters of reference indicate corresponding parts.

This invention consists in having the bearings ot' the driving-shaft ofa horse-power arranged in such a manner that they will slide in adirection transversely with the shaft, and having springs or theirequivalents connected with said bearingsin such a manner that they willhave a tendency to press the band-wheel, which is on the driving-shaft,in contact with the brake when the band is oft' from said wheel, theband when on the wheel keeping by its tension the wheel free from thebrake, so that at any time when the band is cast off from the wheel thesprings will throw the wheel in contact with the brake.

A represents the driving-shaft of a horsepower, and B, the bandwheelthereon. C G represent the bearings of the shaft A, which are providedwith base-plates a tt, the latter being tted in sockets or guides D D onuprights E E. The base-plates t a are allowed to slide freely in theguides D D, and against one end ofthe base-plates t (t springs F F bear,and these springs have a tendency to press the periphery ot' the bandwheel B against a brake, Gr, as will be fully understood by referring toFig. l. Then the band is on the wheel B the tension of the former willkeep the wheel free from the brake; but at any time when the baud iscast oft' from the wheel the latter will, under the action ofthe spriugs F, be thrown in contact with the brake. Hence the machinery will beinstantly stopped when the band is cast oft' from the band-wheel, themomentum of the moving parts being over come by the friction of thebrake against the periphery ot' the band-wheel.

The bearings -GO-are-each provided with a hinged-plate, H, which whendown are over the shaft A, and secure the same in its bearings, saidplates being held down by means of springcatches I. By this arrangementthe,

shaft may be readily adjusted in and removed from its bearings.

Having thus described my invention, I claim as new anddesire to securebyLetters Patentl. The placing of the driving-shaft ot' horsepowers insliding bearings, acted upon by springs or their equivalents, in such amanner that the band-wheel on the drivingshaft will, when theband iscast 0E from it, be thrown in contact with a brake and the machineryatonee stopped, the tension ot' the baud when 011 the wheel keeping thelatter free from the brake, substantially as set forth.

2. The hinged plates and spriugcatches, ap-v plied to the bearings ofthe driving-shaft in the manner substantially as and for the purposespecilied.

WM. F. RUNDELL. Vitnesses:

WM. A. GRoPsEY, S. B. HEWITT.

